[Podofo-users] How to reduce pdf document size?

Tue, 28 Oct 2014 01:46:21 -0700

Hi,
 
I create a PDF document using PdfMemDocument (podofo 0.9.2). It contains just a few words but is around 420KB in size. I think the "oversize" comes from the Filter/FlateDecode part. How can I reduce the output filesize?
 
Here is the code snippet:
 
       try 
    {


        PdfMemDocument document;



        PdfPainter painter;



        PdfFont* pFont = document.CreateFont( "Arial" );



        if( !pFont )



            return false;



        painter.SetFont( pFont );



 



        PdfPage* pPage = document.CreatePage( PdfPage::CreateStandardPageSize(ePdfPageSize_A4) );



        if(!pPage)



            return 0;



        painter.SetPage(pPage);



 



        pFont->SetFontSize(20);



        painter.DrawText(MARGIN_LEFT, 200, "test text");



        painter.FinishPage();



 



        document.Write(filename.toStdString().c_str());



    }



    catch( PoDoFo::PdfError& e )



    {



        qDebug() << e.ErrorMessage(e.GetError());



        return false;



    }



 



I get the following pdf (as text):



 



%PDF-1.3

%âãÏÓ

1 0 obj<</Type/Catalog/Pages 3 0 R>>

endobj

2 0 obj<</CreationDate(D:20141028091437+01'00')/Producer(PoDoFo - http://podofo.sf.net)>>

endobj

3 0 obj<</Type/Pages/Count 1/Kids[ 8 0 R]>>

endobj

4 0 obj<</Type/Font/BaseFont/ArialMT/Encoding/WinAnsiEncoding/FirstChar 0/FontDescriptor 6 0 R/LastChar 255/Subtype/TrueType/Widths 5 0 R>>

endobj

5 0 obj[ 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 750.000000 277.832031 277.832031 354.980469 556.152344 556.152344 889.160156 666.992188 190.917969 333.007812 333.007812 389.160156 583.984375 277.832031 333.007812 277.832031 277.832031 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 277.832031 277.832031 583.984375 583.984375 583.984375 556.152344 1015.136719 666.992188 666.992188 722.167969 722.167969 666.992188 610.839844 777.832031 722.167969 277.832031 500.000000 666.992188 556.152344 833.007812 722.167969 777.832031 666.992188 777.832031 722.167969 666.992188 610.839844 722.167969 666.992188 943.847656 666.992188 666.992188 610.839844 277.832031 277.832031 277.832031 469.238281 556.152344 333.007812 556.152344 556.152344 500.000000 556.152344 556.152344 277.832031 556.152344 556.152344 222.167969 222.167969 500.000000 222.167969 833.007812 556.152344 556.152344 556.152344 556.152344 333.007812 500.000000 277.832031 556.152344 500.000000 722.167969 500.000000 500.000000 500.000000 333.984375 259.765625 333.984375 583.984375 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 750.000000 277.832031 333.007812 556.152344 556.152344 556.152344 556.152344 259.765625 556.152344 333.007812 736.816406 370.117188 556.152344 583.984375 333.007812 736.816406 552.246094 399.902344 548.828125 333.007812 333.007812 333.007812 576.171875 537.109375 333.007812 333.007812 333.007812 365.234375 556.152344 833.984375 833.984375 833.984375 610.839844 666.992188 666.992188 666.992188 666.992188 666.992188 666.992188 1000.000000 722.167969 666.992188 666.992188 666.992188 666.992188 277.832031 277.832031 277.832031 277.832031 722.167969 722.167969 777.832031 777.832031 777.832031 777.832031 777.832031 583.984375 777.832031 722.167969 722.167969 722.167969 722.167969 666.992188 666.992188 610.839844 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 889.160156 500.000000 556.152344 556.152344 556.152344 556.152344 277.832031 277.832031 277.832031 277.832031 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 556.152344 548.828125 610.839844 556.152344 556.152344 556.152344 556.152344 500.000000 556.152344 500.000000]

endobj

6 0 obj<</Type/FontDescriptor/Ascent 905.273438/CapHeight 905.273438/Descent -211.914062/Flags 32/FontBBox[ -664.550781 -324.707031 2000.000000 1005.859375]/FontFile2 7 0 R/FontName/ArialMT/ItalicAngle 0/StemV 1>>

endobj

7 0 obj<</Filter/FlateDecode/Length 427845/Length1 773852>>

stream

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÷Äõ“�wÚùç©¡



 



[...]



 





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endstream

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8 0 obj<</Type/Page/Contents 9 0 R/MediaBox[ 0.000000 0.000000 595.000000 842.000000]/Parent 3 0 R/Resources<</Font<</Ft4 4 0 R>>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>>>

endobj

9 0 obj<</Filter/FlateDecode/Length 70>>

stream

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endstream

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<</ID[<C4EA965CFC234F2F9241BC75055096D9><C4EA965CFC234F2F9241BC75055096D9>]/Info 2 0 R/Root 1 0 R/Size 10>>

startxref

431595

%%EOF



 



 



Thanks!



 



Regards,



Sebastian



 




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